At what odds and on what maps [or all, or just mystery chests] can the Magic Buildings be won?
Presumably these have replaced something else that could have been won previously? Have the reduced the odds of Spire buildings being won, or something else, eg Portal Profits?
I think the Spire is fun and a good challenge and the possibility of winning the Magic Buildings was suggested when the event was first announced but I hope this doesn't make existing Spire buildings like Library less likely. Afterall the Moonstone Set buildings can only be won in Spire and without the full set a number of the buildings don't make sense.
If its replacing Spire buildings I'm not impressed, if its replacing the odds of Portal Profits though which can be won elsewhere, then I'm all in favour!